Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 103
ection, cut it off to theheight of the chimney stack, and the top point will be the centreof upper end of stack. Through this point draw centre lines at30° each way and mark off the width and breadth of the stack,and through the four points thus found draw four lines parallel L.ofC. 100 FBAGTICAL…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
